Pith Number

pith:OJOJUXOQ

pith:2006:OJOJUXOQTUKMYGMIDGU4W5VTVN

not attested not anchored not stored refs pending

Potential of Ozone Formation by the Smog Mechanism to shield the surface of the Early Earth from UV radiation?

Barbara Stracke, Beate Patzer, Heike Rauer, John Lee Grenfell, Ruth Titz

arxiv:astro-ph/0609219 v1 · 2006-09-08 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OJOJUXOQTUKMYGMIDGU4W5VTVN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T16:59:22.216331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

725c9a5dd09d14cc198819a9cb76b3ab435ea6f9f61acfafa00b68f10402056f

Aliases

arxiv: astro-ph/0609219 · arxiv_version: astro-ph/0609219v1 · doi: 10.48550/arxiv.astro-ph/0609219 · pith_short_12: OJOJUXOQTUKM · pith_short_16: OJOJUXOQTUKMYGMI · pith_short_8: OJOJUXOQ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OJOJUXOQTUKMYGMIDGU4W5VTVN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 725c9a5dd09d14cc198819a9cb76b3ab435ea6f9f61acfafa00b68f10402056f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ffd08417e797ad44261989412ec706baa3ee23e75bf24b275d2aa86b13a5ad6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-09-08T10:10:15Z",
    "title_canon_sha256": "d67daf5d9b19ba9c88558add84c40389fb73db3d460dd16f27deb13b0a2db26b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0609219",
    "kind": "arxiv",
    "version": 1
  }
}